Power lift mechanism for plows



Aug.. 23', 1932- R. J. ALTGELT ET AL POWER LIFT MECHANISM FOR FLOWS 3 Sheets-Sheet 1 Filed March 1'7, 1950 Fly. 1.

Fig.2.

lnuenions' Rudolph, JAZZgeZZ 62 Cameron H. Gemberlzny Aug. 23, 1932. R. J. ALTGELT ET AL POWER LIFT MECHANISM FOR FLOWS 1950 3 Sheets-Sheet 2 Filed March 1'7 172716725075' udolph :LAZZgeZ i 2" 27267 07217. emberlz'ny Aiiy.

1 R. J. ALTGELT ET AL POWER LIFT MECHANISM FOR FLOWS Filed March 17 19.30 S-Sheets-She et- 3 ill 122F672, fore; Ha doZph JAZ Zgel i" d CQMLFOIZH emZv-erlwy 14, ZZy.

Patented Aug. 23, 1932 a; nonbnritmnrrenm "AND cAMnRoN na es-Bernamummies-menu; AS-

7 .SIGNOBS TOOLIYER rhmrneorrmnnr oomrnny, A 'CQREQBATION on 'nnLn-wnan i rowEnLrif r irncnAmsivr ron rriows i Thisinvention relates to impro'vementsfin power"liftmechanism for plows, of the type which power derived from the carrying wheels is. utilized directlylto raise the plow frame Our presentinvention has special reference to I clutch deyices whereby the carrying :wheel isoperatively-connected wit'hordis- (the patentztoyRudolf J, Altgeltet a1;

actuated Jiyrthe land wheel of the plow.

through the clutch mechanism vfor the pur- 121325 .pose'of raising the plow structure.v These 7 patents particularly disclose a lifting arrangen ent which maintains the 'plowdn an je;levated.position bymeans of the lower end of thealifting armlockingat a point slightly beyond centers or in other words, locking 3 ust slightly beyond dead-center. 'i-The'plow in this arrangement is' dropped to its working or loweredpositionbyforcing the lifting arm back over "dead center after which gravity $5, causes the plow structure, includingthe bases and :beams, to fall. The lpo weri lift device disclosed in these patents works Very satis' K factorily onall small plows,'butfor the heavy type plow this particular arrangementtis, ob-

' jectionable because it-requirestoo niuchfpowsermon the part of the operator toipull the trip rope or lever when; he desires to drop the plow to worl i11g'position because it be-- comes mecessary to actually raise the plow structune about an-eighth of. aninchor more in effecting or raising the lower end of the lifting arm o veiudead center; U 1 y I It is therefore'the primary object .of'the present. invention to overcome :these difli- 3 .culties. herein vabove pointed out and provide -We have shown the plow frameas com prising a beam 10, the latter being provided at its rear end with a standardfl2, to which a the plow1base 13 is secured. 'It is-unolerstood,

however, that-theframe may comprise a plurality of-beams' suitably spacedand each Q ii atibn filed mareni'z, 11930 seriaiim 433,339.

an arrangement, whereby fa novel and imrangement locks the lower endof the lifting arm at =a,;positionslightly shortofdead center or slightly short of a, straight line 1'5 passing between theland wheel aXleand the mainframe bearing oftherl-ifting arm.

These and other objects 1 are accomplished. in a manner hereinafter described and particularly pointed oiit in the appended claims.

Referring. to the;.drawings Fig; 1 is a side-elevational View of aconventional form of plow, having our improved power lifting mechanism embodied therein;

.FigJQhis the top plan view vof the same? proved clutch, mechanism and locking ar- Fig. 3; isanlenlargedfragmentarynand partly Tcross-sectional View of the power lift 'mechanism showing the plow in its lowered positiong" i "Fig. 4 is an enlarged fragmentaryyand" partly crosssectiqmal viewshowing the porsition of the different partsof the power lift mechanism when the plow is in a raised Fig. 5'is an enlarged fragmentary and detailed viewshowingtlie clutch housing and parts carried therebyp 1 c- Fig; 6 is an enlarged side-elevationalview,

partly in cross-section showing the. position which the parts assumewhen the plows are in their lowered or'working position and Fig-7 is an enlarged transverse andpartly cross-sectionaLview taken on a horizontal line-passing'throughthe axis of the Wheel,

tion is shown in-connection with a relatively lightttwo-base plow. 3 f

Intheemb diment'of the invention shown in the drawings,'-the bearing bracketsyindicated at 114:, are seciuredto the frame for the but for the purpose'of'illustrating the inven-i V I 5 mitted through the" medium of thefilifting :16 of the crank axle 15, a spindle portion 17 is provided for theaccommodationgof the "land fwhee'l :18. The hub box 19 (see Fig 7) provided at its inner end with a "flanged portion20 havingan interiorannular series of corrugations or recesses 21 for cooperation with the clutch mechanism hereinafter, described; said flanged portion constituting in effect 'p'art'of such clutch mechanisms, i

{Rigidlysecured to they land wheel'axle so '1 as to encircle the spindle portion thereof, is

'spindle' 17 and mounted'between the housing "a flangedjdisc or-housing '22;"said housing being provided centrally with'a hub portion 23 encircling said spindle; J ournaled on the y'221and thehub 1 9 isa barrel orbearing por-' :tion 24'0f the lifting member or'disc 25.

The lifting disc 25 is providedwith aperipheral flange 26 which encircles the flange ofthe housing 22. Th'e lifting disc 25 is provided with-"afpin 27 on which the lower end of the curved'portion 28 of'the lifting arm-'29 c is pivotally connected; "said lifting arm having pivotal connection with'the plow V 'frameasatf30 tothe forward end of the brackets '14 so that when the lifting disc is turned in one direction, motion will be transarm 29 to the frameto 'raise" the same until .the' co'nnection'" of said arm at 27 on thelifting disc shall have approached the position slightly short of dead center. Dead center w1l-l, of-;,course,- be on the straight line-passing'through the axis of the spindle 16 and the axis of the bearing'30 of the lifting arm 29; When these positions shall have been reached, the plow frame willibe' raisedto'its elevated position" and locked in said position by the mechanism hereinafter described.

I fj Thel lifting disc-25 has pivoted thereto at {31a curved roller dog 32' which carries near i p U 56 its free end a roller33 and thefree end ofthe dog is provided integrally with alug or pro- :jection 34,'which extends through anopening V the lifting disc '25. The-lug34is pro- .wvided'wlth a straight face as shown at 36 15s and alcurved face 37, "The free end portion .of thedog32 is provided with an ear 38'with which one end of a spring 39 is connected, the

other end of-the spring being attached to a gshowngin Figs'. 3 and 4, but means "are "proi r esistance off-said j'sp'ringso as to cause the roller toengagejln one or another of the cor- I rugations or recesses 21 in the hub 20 mint 7 vided for moving said rollerdog againstthe ated and rotatable with the land wheel 18 and thus operatively connect the lifting disc with the land wheel. The roller dog 32 is provided with an inwardly curved projecting cam or flange 41 which partially embraces a curved cam or flange 42'on the plate lever 43,

which in turn is pivotally 1 attached .at 44 to the housing member 22. Said plate lever 43 isprovided with anelongated opening 45 forthe accomodation of'the hubloff saidfhousing and to permit the 'oscillatingmo veinent of said leverplate The lever plate 43 is retained in its normal position by means of a spring 46 andwhen said lever plate is moved from such position, its flange 42 cooperating so with-the flange'lor' cam'f4'1 of theroller dog', i will cause the latter to move'outwardly and its roller 'to engage the corrugated hub 20. The

housing. 22 is provided with 'an" opening as shown at 47 in which a control lever 48is pivotally supported as'showna-t-49 and held in its normal position by means of a spring ofthecontrol'lever 48 and is provided with a tooth 54 to engage'a lug or shoulder 55 on the free end of the lever plate 43. 3 The dog, 53 is also provided'ati'its'free' end portion with an upwardly} curved tongue 56; It-is apparent that by'operatingthecontrol lever v in one direction, the "en a mentof the tooth 54 of the dog53 with the "lug or'sho'ulder 55 of the lever plate 43, will cause the plate" to move in a manner above described to; effect the" clutching with the lifting disc of the land wheel, The lug 57 located 'witliinthe' hous ing22 is in suchia position that as the'liftin'g disc approaches the upper end of its throw;

said lug will engage th'e face 36-011 the-roller dog 32and force said roller dog inwardly' to disengage roller 33 from the corrugated'hub i The lifting disc isprovided' on "its-inner face with a'lug or projection 58 whichfwhen the lifting discapproaches the'u'p'per'end iof its throw during thelifting; o eration. will 7 V V engage curved tongue 56 tith pivoted dag.

53 and liftjthe'latter out ofr'ea ch of the lug gage the tooth'54 of the dog 53 and further turning movement o'f the lifting disc will be prevented. Inks-demo avoid depending entirely upon the engagement of the lug 58 with V the tooth of the'fpivoted .dog53 'tolimit the lug 4O onthe'liftin'g-disc adjacent thefhub V port on thereof. The spring :39 serves to normally hold the roller dog in the position l.ifting throw of the dis'c 25; the latteris provided on its inner facewith a fixedfliigi59 ,whichis adapted toabut; against thellu'g 57 in the housingwhen thelifting disc'reaches the endof its lifting'throwf V c The constructionth'us' fai des cribed essentiall v like and operates in t e c c. V. a ma 'rjd scribed and claimed in'theaforementioned or Shannan, 'Oh the imp ants 43. jWhen 1 i the lifting disc reaches the end of its lifting i "movement,' the lug or proi ecti on 58'jjwi'llenhen the plow beams are in-their'lowered .io working position, the lifting mechanism "to ground, "it will not beneeessaryitovburden the operator to positively lift ithe; PIOW' structnre. past or over dead centeras'i's necessary with power-alift' lplows heretofore sconstruoted. The mechanism :co'mprises .a shell-crank zlor crankr'ollert dog 60 Iwhich is pivoted as shown rat" :61 to the free end" of an npwardlycumed -22. :The lower onnfre-e end of i this roller which is adapted to -,engage an "outwardly projecting lug 641 formed on .thewouter'pe- -:ripheryof the lifting plate '25. Thejilever I nected to ailaterally eXtendingear' GG fOrIned on the crankdog'60and theother end thereof connected to anew-'67 formedon -the housi ing 22. rThecrank dog60 is provided'with a i" rearwarclly extending 1 armf as shown at 68 'i'which is adapted to be'engage dgbya r 11er 69, l journaled between two e'ars 7O, {formed on a bracket 51 which in turn' is "secured to the -actuating lever 48; l

The operation of our improved-plow constructionis' asfollows'z' i3 and 6. Should the 'ontr'ol l'eVefbein'oved forwardly from the positions shown in Figs. "i1, 3 and 6 the co operationof the-dog, 53'Witl1 I i 5 dog 53" will be' in "the position tofengage the -lug orprojection55i j It'willhe noted" that as the piyotal-ooniiebtion-27 of thelifting patents and for a, more detailed description u of the ,clutch mechanism heneintdisclosed, vreference to these patents ymay'ioe had. V

.; f'The (essential featured the present inyentiominclude's :a means for positively. locking the clutch parts and lifting arm at a posit-ion,

slightly short of dead center sothatwhen the @operator is desirous of releasing the; locking imCh&I-1lSII1,;lOW9I'lIlg the plows and heamsto their nonmall "operative position 11160 the arm 62 forined integrallywithrthe housing crank dogx is provided with'za roller =63 crank dog 60' 'is normally pressed inwardly toward's'the spindle- 16 of thee-rank axle 15 by a spring 65 which has one end thereof conwi-ll be the positi'onsas shown in Figs. 1,

l 'plate 43'will cause the latter to b moved and thelifting disc to be'clntohed to scribed. Rotations "of the land wheel will. now cause the lifting disc'toturnedapproximately'through an arc of slightly over i one hundred and eighty degrees (1380?) or clutching} the lifting disc 'fiorn the land wheel) land the tooth 54 of the now eleiiated arm 29 approaches the dead-Ecentef or the i lf mthe 111 64 formed onuthe liftingiplate 25;.and' the plow frame willz'thenibedropped tot-it's;- working; position by gravity. r it straight line passing between spindle? 316' looked in a position slightly short ofwdea'd center. H W-hen the ;operator {is desirous.- 'of I vlowering theplow'bjase into wonkingkposition, v5 the; operating lever '48 ,isapulled xforwaiidly ;:thro1l1:gh the medimn of 1 a; rope midi-through thisraotion thearolle n69vdepressesa rearward extiencling. 'arm 168 of the ,'bell ;-vcranknoller 1 g .1605; thereby disengaging the: mol1er;i63

appended claims: a

P2. In an agricultural' impleinent in .hich

the earth working means are rei s'ed-byeow r i and loweredfby gravityfihe combination'with the land wheel in the manner previously dethe pluearingicenterifamof therliftingaflrm 529 :the roller: will-aide over *the? inclined -;;projeoti-n giportion oftheliig G L-and be locked :t-herein clearly shown in Fig; 4- tO'JthEIG- by positively lock rthegplowfname ina-ithe" eelevat-ed position so that therelativeicenters 30f the l-iftingga'rmandlspindleof the axleare Wliatrweclaimis our invention andidesino Y ":to secure-'bfyLetters -1?atei1t1isi" t L I 1 1: 13111 antagrlcultural implement in iwhinh .theearth working :meansvare raised by'power i 5 lowered *by ignavity; the combination iwith iazfraniey I an laxle; fand a carrying wheel, a lifting :meniber loosely vmounted ion sa'i'd axle, 1 means for locking: said 'liftingfmember .:to said icarrying wheel; a lifting item-"having oneend thereof pivotally connected With-said frame and the *othenendthereof pi otally -'CQI1 IIeCted with said lifting member, a'n'd fmeansl fol-"locking the lower-end of said in-g arrnginr'a position slightly short f d'eajd ,centerm H .r I

a frame, an axle and acarrying wheel," and oscillatorylifting member omhe axlegmeans for lockingsaid oscillatory member; =to the 1carry in g wheel, aj lifting arm having uneend ypivotally connected to #said liftingamemberfl aiidthe other end thereof pivot-ally connected with sa idfi'anie and 1a locking'dog' engageaible with said lifting: arm for locking the "lower 1 end of said lifting arm 1 in a: position? s'lightly short of dead center. 7 1 v 31in tan agricultural f implement of the frame, an axle and a carrying wheel; ofan oscillatory lifting mernher looselyinounted on said axle, means; for looking said member to "the carrying wheelyaliftin g arr'nhaving i one end thereof 'pivotally connected "to "said lift'ing'memb'er ahousingrigidlyseoured'to said g'axle, a rollerfd'og:piyotally connjeoted "to said housing; and me ns formed an i said i iii- 12C character described, the combination witha Y "While in therabove specificationweihayeg described one embodiment which oui-iinven- :tionm'ay .a'ssumelinpractice, it will of boiirse I a-understood that 'therssameis capahlovbf "modification and thatmodification'mayrbef I V.

made without departing from the spiritaandr'ig'j scope of the invention :as 'expressedifin the lift in j member andfengageable on said-dog whend y the lower pivotedend: of sai'd lifting arm is locked-in a p'osition slightly short of V i the l in'e passingahrough the axle centerof said wheela nd thea'fxia'l center ofthe pivot ofi -'s'ai'd='carryihg Wheel, a lifting arm h'aving one 1 end: thereof pivoted -ti()" }sa i fl frame {and j the other end thereof pivotally connected to said lift-ingxmember, housing secured to said 7 ,f axlejihaving anup'wardly extending -arm-,:a shell-crank roller dogpivoted to, said' 'a-rm' and p 5 engageablegwith athe lug'on said litting member for locking-said lifting 'memberaand said 'aovframein an; elevated position, a control-lever pivoted to said housing and engageable with- :said bell-crank roller'dog forzunlocking said I 'dogfrom said lifting member for lowering esaidz framerand :srplow m, their working io -member v journaled on :said axl'e,'=a corrugated amember iicarried by said ;,-Vwheel, :a a spring I :aotuatedrollen arm carried'b'yesaid lifting membenfor cooperation with saidcorrugated Binember; andxmeansi earned hy said housing Til-11d --cooperatingiw-ith said lift'ingmember. to

E positively. lock said [lifting member thereto and hold said frame fin-its elevated position. i -6.11m an agricultural im lenient of the character described; the .conifiinationwith a {i 'io frame, an: axle,andi a- J wheel, of a housing ember secured-to said axle, an oscillatory V lifting member journaled on said axle,- a corirugated membjer carried :by said wheel, a

' spring actuated rollerdog carriedby' said lift- 15 ;i;1 1g member for cooperation with said corai-lrngated membertoheactu ated thereby, a lift- 7 ingarm having onejend thereof pivotedsto ;said frame and the other en cla-thereof pivoted jtosaid lifting arm, and-means carried bysaid housing and: engageable :withi said lifting Qmembenwherebythe lowerfend ofIsaid-lifting,

class descr bed, the combination with a frame,

an axle and a lifting wheel a housing secured @rm nayhe lockedin a position slightlyshort -;:-O flt he :line: passing{through the axes: of said said frame.

frame, an axle and a. carryingwheel,,a-hous- -ingsecuredt0 said axle, an oscillatory-lifting e, umsmbe v-io irnaled: n-said xl a or ug -membe w iedzbyn fii' ln sprin a uatedrollerdog carried by said lifting member ten. nocm -r'at i h. Said e rugat ldms h al-asp i a tfi r eg c rr e b a sei flh u n ensl ada ted, en age alug o from said zdisc to lower said frame to workaxleg an dthe pivot 'ofvsaid liftinglarm with 7. ;In an agr cultural implement; of the clfass; described-,;.-thecombination, with'ca I r saidcorrugatedlmember, ,a .lever cam plate said roller dog, a lifting arm having one end saidjlifting member for locking said frame in :an elevatedpositiomand a control lever pivoted to said housing having means'thereon en- -gageable with 'said' 'second named roller dog i for unlocking the latter from said lifting arm 9 hereby said fra me -may drop by gravi ty to its working'position; :J 2;. r :1 8I =In an. agricul.t v character described, the combination witha framdanaxleand a whee1, a housing membersecuredtoisaid axle, an oscillatory lifting V 'I'al implement of the,

member j'ournal'ed my said axle, a corrugate -member carried bysaid wheel,aspring actu atedroller dog carried by said liftingmemo her for 1 cooperation fwithr said: corrugated j :member, I a lever plate pivoted to said hous r ing and adapted to acooperatelwith' said roller dogg-a. second roller dog carried by 'said'housing and adaptedto cooperate .with'saidliftin -member for lockingisaidframeinan elevate position, and a leverepivotedtosaid housing having means thereon for actuating 3 said plate and controlling said second named roller" dog whereby said lifting member may be un-' V alocked and said frame lowered to said workno I ingposition t I t9.- In;a;an;- agricultural implement of the class described, theicombin-ationwith a frame,-ian,axle, andawheel, ahousing-secured j to sa1d a'x le, a l fting dlscournaled (on said 08 axle, 'a. -corrug'ated member carried by said -wheel, a normally spring actuated roller dog carried bysaid disc for cooperation withsaid 1 corrugated member at leverj cam plate pivoted to said housing for cooperation with said 1 rollerrdog, a lifting armhaving one end thereof pivoted to said. frame and thecother endthereof pivoted to saidlifting disc, means whereby said rollerfdog-may beactuated to become -'disengaged from. said; corrugated '10s .member when the. lower end 'ofsaid lifting arm reache s any-V: elevated positioni slightly short of dead icenterf-ga second roller do 7 piyoted-to sa1 ,d housing and engageable with f .S3Jld l1fl IIlg d1SQ for; locking said frame in an :10 elevated position, and a hand operated lever pivoted; to said housing and engageableiwith said last named roller-.dog-to unlock the same ing position. V

, 1- 0, 1 anfiagricultural implement @1116 pivoted to said housing for cooperation with V thereofgpivoted to saidrvfraine and other saidcorrugated member whentheflowr end" 9' l i in -a a e ch si position slightly 130 short of dead center, a locking dog pivoted v to said housing and adapted to engage the lug on said lifting member for locking said frame in an elevated position, a lever pivoted 5 to said housing and a roller trip carried by said lever and engageable with said last named roller dog for disengaging the same from said lifting member for lowering the said frame from its elevated position.

In testimony whereof We have signed our names to this specification, on this 13 day of March A. D. 1930.

RUDOLPH J. ALTGELT. CAMERON'H. GEMBERLING. 

